<template>
  <a-layout>
    <a-layout-content :style="{
      background: '#fff',
      padding: '24px',
      margin: 0,
      minHeight: '280px',
    }">
      <!-- 栅格组件 左右布局 -->
      <a-row :gutter="24">
        <a-col :span="8">
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button type="primary" @click="handleQuery()">
                  查询
                </a-button>
              </a-form-item>
              <a-form-item>
                <a-button type="primary" @click="add()"> 新增 </a-button>
              </a-form-item>


            </a-form>
          </p>
          <a-table v-if="level1.length > 0" :pagination="false" :columns="columns" :row-key="(record) => record.id"
            :data-source="level1" :defaultExpandAllRows="true" :loading="loading" size="small">
            <template #name="{ text, record }">
              {{ record.sort }} {{ text }}
            </template>
            <template v-slot:action="{ text, record }">
              <a-space size="small">
                <a-button type="primary" @click="edit(record)" size="small"> 编辑 </a-button>

                <a-popconfirm title="删除后不可恢复,确认删除?" ok-text="确认" cancel-text="取消" @confirm="handeleDelete(record.id)">
                  <a-button type="primary" danger size="small"> 删除 </a-button>
                </a-popconfirm>
              </a-space>
            </template>
          </a-table>
        </a-col>
        <a-col :span="16">
          <!-- 保存按钮 -->
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button type="primary" @click="handleSave()">
                  保存
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <!-- 表单组件 -->
          <!-- layout="vertical" 竖形布局 -->
          <a-form :model="doc" layout="vertical">
            <a-form-item>
              <a-input v-model:value="doc.name" placeholder="名称" />
            </a-form-item>
            <a-form-item>
              <a-tree-select v-model:value="doc.parent" style="width: 100%"
                :dropdown-style="{ maxHeight: '400px', overflow: 'auto' }" :tree-data="treeSelectData"
                placeholder="请选择父文档" tree-default-expand-all :replaceFields="{ title: 'name', key: 'id', value: 'id' }">
              </a-tree-select>
            </a-form-item>
            <a-form-item>
              <a-input v-model:value="doc.sort" placeholder="顺序" />
            </a-form-item>

            <a-form-item>
              <a-button type="primary" @click="handlePreviewContent()">
                <EyeOutlined /> 内容预览
              </a-button>
            </a-form-item>
            <a-form-item>
              <div id="content"></div>
            </a-form-item>
          </a-form>
        </a-col>
      </a-row>
      <!-- 富文本预览 -->
      <a-drawer width="900" placement="right" :closable="false" :visible="drawerVisible" @close="onDrawerClose">
        <div class="wangeditor" :innerHTML="previewHtml"></div>
      </a-drawer>


    </a-layout-content>
  </a-layout>
  <!-- 模态框组件 -->
  <!-- <a-modal title="文档表单" v-model:visible="modalVisible" :confirm-loading="modalLoading" @ok="handleModalOk" ok-text="确认"
    cancel-text="取消">
   
  </a-modal> -->
</template>

<script lang="ts">
// createVNode 创建虚拟节点（Virtual Node）的函数
import { defineComponent, onMounted, ref, createVNode } from "vue";
import { message, Modal } from "ant-design-vue";
// 图标
import ExclamationCircleOutlined from "@ant-design/icons-vue/ExclamationCircleOutlined";
import axios from "axios";
import { useRoute } from "vue-router";
import { Tool } from "@/utils/tool";
import E from 'wangeditor'

export default defineComponent({
  name: "AdminDoc",
  setup() {
    const route = useRoute();
    console.log("路由：", route);
    console.log("route.path：", route.path);
    console.log("route.query：", route.query);
    console.log("route.param：", route.params);
    console.log("route.fullPath：", route.fullPath);
    console.log("route.name：", route.name);
    console.log("route.meta：", route.meta);
    // 查询参数
    const param = ref();
    param.value = {};
    const docs = ref();



    const loading = ref(false);

    // 因为树选择组件的属性状态，会随当前编辑的节点而变化，所以单独声明一个响应式变量
    const treeSelectData = ref();
    treeSelectData.value = [];

    const columns = [
      {
        title: '名称',
        dataIndex: 'name',
        slots: { customRender: 'name' }
      },
      {
        title: 'Action',
        key: 'action',
        slots: { customRender: 'action' }
      }
    ];

    /**
     * 数据查询
     **/
    const handleQuery = () => {
      loading.value = true;
      // 如果不清空现有数据，则编辑保存重新加载数据后，再点编辑，则列表显示的还是编辑前的数据
      level1.value = [];
      axios
        .get("/doc/list")
        .then((response) => {
          loading.value = false;
          const data = response.data;
          if (data.code === '200') {
            message.success("查询成功!")
            docs.value = data.data;
            console.log("原始数组:", docs.value);
            level1.value = [];
            level1.value = Tool.array2Tree(docs.value, 0)
            console.log("树形结构:", level1);

            //父文档下拉框初始化 相当于点击新增
            treeSelectData.value = Tool.copy(level1.value);
            //为选择树添加一个"无"
            treeSelectData.value.unshift({ id: 0, name: "无" })

          } else {
            message.error(data.msg);
          }
        });
    };

    /**
   * 一级分类树，children属性就是二级分类
   * [{
   *   id: "",
   *   name: "",
   *   children: [{
   *     id: "",
   *     name: "",
   *   }]
   * }]
   */
    //  初始化一个空数组 防止v - if报错
    const level1 = ref(); // 一级分类树，children属性就是二级分类
    level1.value = [];



    // -------- 表单 ---------
    const doc = ref(); //表单组件
    doc.value = {
      ebookId: route.query.ebookId
    };
    const modalVisible = ref<boolean>(false);
    const key = "updatable";
    const modalLoading = ref<boolean>(false);

    // 富文本
    const editor = new E('#content');
    // 右边选择父文档 被富文本框挡住 默认500
    editor.config.zIndex = 0;


    // 保存按钮
    const handleSave = () => {
      modalLoading.value = true;

      doc.value.content = editor.txt.html();

      axios.post("/doc", doc.value).then((res) => {
        modalLoading.value = false;
        const data = res.data;
        if (data.code === '200') {
          // 提示框
          message.loading({ content: "正在执行中...", key });
          setTimeout(() => {
            modalVisible.value = false;

            message.success({ content: "请求成功！", key, duration: 2 });
            // 重新加载列表
            handleQuery();
          }, 1000);
        } else {
          message.error(data.msg);
        }
      });
    };

    /**
     * 将某节点及其子孙节点全部置为disabled
     */
    const setDisable = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("disabled", node);
          // 将目标节点设置为disabled
          node.disabled = true;

          // 遍历所有子节点，将所有子节点全部都加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              setDisable(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            setDisable(children, id);
          }
        }
      }
    };

    // 删除参数
    const deleteIds: Array<string> = [];
    const deleteNames: Array<string> = [];
    /**
     * 查找整根树枝
     */
    const getDeleteIds = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("delete", node);

          // 将目标ID放入结果集ids
          // node.disabled = true;
          deleteIds.push(id);
          deleteNames.push(node.name);


          // 遍历所有子节点
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              getDeleteIds(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            getDeleteIds(children, id);
          }
        }
      }
    };

    /**
 * 富文本内容查询
 **/
    const handleQueryContent = () => {

      axios
        .get(`/doc/find-content/${doc.value.id}`)
        .then((response) => {
          loading.value = false;
          const data = response.data;
          if (data.code === '200') {

            editor.txt.html(data.data);

          } else {
            message.error(data.msg);
          }
        });
    };

    /*
     * 编辑
     */
    const edit = (record: any) => {
      // 清空富文本框
      editor.txt.html("");
      modalVisible.value = true;
      // 进行对象拷贝（深拷贝）从而不影响record本身
      doc.value = Tool.copy(record);

      // 不能选择当前节点及其所有子孙节点，作为父节点，会使树断开
      treeSelectData.value = Tool.copy(level1.value);
      setDisable(treeSelectData.value, record.id);

      // 为选择树添加一个"无"
      treeSelectData.value.unshift({ id: 0, name: '无' });
      // 等到doc.value.id有值再进行富文本内容的查询
      handleQueryContent();

    };

    /* 新增 */
    const add = () => {
      // 清空富文本框
      editor.txt.html("");
      modalVisible.value = true;
      doc.value = {
        ebookId: route.query.ebookId
      };


      treeSelectData.value = Tool.copy(level1.value);

      // 为选择树添加一个"无"
      treeSelectData.value.unshift({ id: 0, name: '无' });


    };

    /* 删除 */
    const handeleDelete = (id: number) => {
      // console.log(level1, level1.value, id)
      // 清空数组，否则多次删除时，数组会一直增加
      deleteIds.length = 0;
      deleteNames.length = 0;
      getDeleteIds(level1.value, id);
      Modal.confirm({
        title: '重要提醒',
        icon: createVNode(ExclamationCircleOutlined),
        content: '将删除：【' + deleteNames.join("，") + "】删除后不可恢复，确认删除？",
        onOk() {
          // console.log(ids)
          axios.delete(`/doc/${deleteIds.join(",")}`).then((response) => {
            const data = response.data; // data = commonResp
            if (data.code === '200') {
              // 重新加载列表
              handleQuery();
            } else {
              message.error(data.msg);
            }
          });
        },
      });
    };



    // ----------------富文本预览--------------
    const drawerVisible = ref(false);
    const previewHtml = ref();
    const handlePreviewContent = () => {
      const html = editor.txt.html();
      previewHtml.value = html;
      drawerVisible.value = true;
    };
    const onDrawerClose = () => {
      drawerVisible.value = false;
    };



    onMounted(() => {

      handleQuery();
      //文本框初始化
      editor.create();
    });

    return {
      param,
      // docs,
      level1,
      columns,
      loading,

      edit,
      add,
      handeleDelete,
      handleQuery,

      modalVisible,
      modalLoading,
      handleSave,
      doc,

      treeSelectData,

      // 富文本预览
      drawerVisible,
      previewHtml,
      handlePreviewContent,
      onDrawerClose,
    };
  },
});
</script>

<style scoped>
img {
  width: 50px;
  height: 50px;
}
</style>
